diff --git a/SAS/TMSS/backend/src/tmss/tmssapp/migrations/0001_initial.py b/SAS/TMSS/backend/src/tmss/tmssapp/migrations/0001_initial.py
index 76d0dc7f0e8530426a173229f714c0a77ff3357a..74dd30b92b0fee17ba8e8d228c5a9ed37563d5d4 100644
--- a/SAS/TMSS/backend/src/tmss/tmssapp/migrations/0001_initial.py
+++ b/SAS/TMSS/backend/src/tmss/tmssapp/migrations/0001_initial.py
@@ -641,7 +641,6 @@ class Migration(migrations.Migration):
                 ('ingest_permission_required', models.BooleanField(default=False, help_text='Explicit permission is needed before the task.')),
                 ('ingest_permission_granted_since', models.DateTimeField(help_text='The moment when ingest permission was granted.', null=True)),
                 ('output_pinned', models.BooleanField(default=False, help_text='boolean (default FALSE), which blocks deleting unpinned dataproducts. When toggled ON, backend must pick SUB up for deletion. It also must when dataproducts are unpinned.')),
-                ('results_accepted', models.BooleanField(default=False, help_text='boolean (default NULL), which records whether the results were accepted, allowing the higher-level accounting to be adjusted.')),
                 ('piggyback_allowed_tbb', models.BooleanField(help_text='Piggyback key for TBB.', null=True)),
                 ('piggyback_allowed_aartfaac', models.BooleanField(help_text='Piggyback key for AARTFAAC.', null=True)),
                 ('priority_rank', models.FloatField(default=0.0, help_text='Priority of this scheduling unit w.r.t. other scheduling units within the same queue and project.')),
diff --git a/SAS/TMSS/backend/src/tmss/tmssapp/models/specification.py b/SAS/TMSS/backend/src/tmss/tmssapp/models/specification.py
index a1d3aac80ab38076736ee66f443c4b3b053d2af7..9e566cf014efeb6139c502bff3d01f2412564da7 100644
--- a/SAS/TMSS/backend/src/tmss/tmssapp/models/specification.py
+++ b/SAS/TMSS/backend/src/tmss/tmssapp/models/specification.py
@@ -506,7 +506,6 @@ class SchedulingUnitBlueprint(ProjectPropertyMixin, TemplateSchemaMixin, NamedCo
     requirements_template = ForeignKey('SchedulingUnitTemplate', on_delete=CASCADE, help_text='Schema used for requirements_doc (IMMUTABLE).')
     draft = ForeignKey('SchedulingUnitDraft', related_name='scheduling_unit_blueprints', on_delete=PROTECT, help_text='Scheduling Unit Draft which this run instantiates.')
     output_pinned = BooleanField(default=False, help_text='boolean (default FALSE), which blocks deleting unpinned dataproducts. When toggled ON, backend must pick SUB up for deletion. It also must when dataproducts are unpinned.')
-    results_accepted = BooleanField(default=False, help_text='boolean (default NULL), which records whether the results were accepted, allowing the higher-level accounting to be adjusted.')
     piggyback_allowed_tbb = BooleanField(help_text='Piggyback key for TBB.', null=True)
     piggyback_allowed_aartfaac = BooleanField(help_text='Piggyback key for AARTFAAC.', null=True)
     priority_rank = FloatField(null=False, default=0.0, help_text='Priority of this scheduling unit w.r.t. other scheduling units within the same queue and project.')
diff --git a/SAS/TMSS/backend/src/tmss/workflowapp/flows/schedulingunitflow.py b/SAS/TMSS/backend/src/tmss/workflowapp/flows/schedulingunitflow.py
index 437d82c871b96c9492828f6505b13eba8d4f70ad..7f442a0d87c28951694bf440fc4e30b1703fc96b 100644
--- a/SAS/TMSS/backend/src/tmss/workflowapp/flows/schedulingunitflow.py
+++ b/SAS/TMSS/backend/src/tmss/workflowapp/flows/schedulingunitflow.py
@@ -243,7 +243,7 @@ class SchedulingUnitFlow(Flow):
     def do_mark_sub(self, activation):
 
         activation.process.su.output_pinned = True
-        activation.process.su.results_accepted = ((activation.process.qa_reporting_to is not None and activation.process.qa_reporting_to.operator_accept) 
+        activation.process.results_accepted = ((activation.process.qa_reporting_to is not None and activation.process.qa_reporting_to.operator_accept)
             and (activation.process.qa_reporting_sos is not None and activation.process.qa_reporting_sos.sos_accept_show_pi)
             and (activation.process.decide_acceptance is not None and activation.process.decide_acceptance.sos_accept_after_pi))
         
diff --git a/SAS/TMSS/backend/src/tmss/workflowapp/migrations/0001_initial.py b/SAS/TMSS/backend/src/tmss/workflowapp/migrations/0001_initial.py
index 5a34111ac5ff48565f38e730030b2f1013ee648f..f098ce22a84eed63822235d1627f98f8208c1835 100644
--- a/SAS/TMSS/backend/src/tmss/workflowapp/migrations/0001_initial.py
+++ b/SAS/TMSS/backend/src/tmss/workflowapp/migrations/0001_initial.py
@@ -62,6 +62,7 @@ class Migration(migrations.Migration):
                 ('qa_reporting_sos', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='workflowapp.QAReportingSOS')),
                 ('qa_reporting_to', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='workflowapp.QAReportingTO')),
                 ('su', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='tmssapp.SchedulingUnitBlueprint')),
+                ('results_accepted', models.BooleanField(default=None, null=True))
             ],
             options={
                 'abstract': False,
diff --git a/SAS/TMSS/backend/src/tmss/workflowapp/models/schedulingunitflow.py b/SAS/TMSS/backend/src/tmss/workflowapp/models/schedulingunitflow.py
index 3a3c4c6d63779bf1dd9c19cadea5fb62521b48e7..555be3c66f9f0193613be0459635efa1610cd018 100644
--- a/SAS/TMSS/backend/src/tmss/workflowapp/models/schedulingunitflow.py
+++ b/SAS/TMSS/backend/src/tmss/workflowapp/models/schedulingunitflow.py
@@ -32,8 +32,8 @@ class UnpinData(Model):
 
 class SchedulingUnitProcess(Process):
     su = ForeignKey(SchedulingUnitBlueprint, blank=True, null=True, on_delete=CASCADE)
-    qa_reporting_to=ForeignKey(QAReportingTO, blank=True, null=True, on_delete=CASCADE)
-    qa_reporting_sos=ForeignKey(QAReportingSOS, blank=True, null=True, on_delete=CASCADE)
-    pi_verification=ForeignKey(PIVerification, blank=True, null=True, on_delete=CASCADE)
-    decide_acceptance=ForeignKey(DecideAcceptance, blank=True, null=True, on_delete=CASCADE)
-
+    qa_reporting_to = ForeignKey(QAReportingTO, blank=True, null=True, on_delete=CASCADE)
+    qa_reporting_sos = ForeignKey(QAReportingSOS, blank=True, null=True, on_delete=CASCADE)
+    pi_verification = ForeignKey(PIVerification, blank=True, null=True, on_delete=CASCADE)
+    decide_acceptance = ForeignKey(DecideAcceptance, blank=True, null=True, on_delete=CASCADE)
+    results_accepted = BooleanField(default=None, null=True)
diff --git a/SAS/TMSS/backend/test/t_tmssapp_specification_django_API.py b/SAS/TMSS/backend/test/t_tmssapp_specification_django_API.py
index b06e29792d44d66480cb033d9db0da6e77cea201..a3d0c15d4dcce292467a5ae4bb71a4ed6f6e5a68 100755
--- a/SAS/TMSS/backend/test/t_tmssapp_specification_django_API.py
+++ b/SAS/TMSS/backend/test/t_tmssapp_specification_django_API.py
@@ -782,7 +782,7 @@ class SchedulingUnitBlueprintTest(unittest.TestCase):
         scheduling_unit_blueprint.refresh_from_db()
 
         # we should be able to modify other fields
-        scheduling_unit_blueprint.results_accepted = not scheduling_unit_blueprint.results_accepted
+        scheduling_unit_blueprint.output_pinned = not scheduling_unit_blueprint.output_pinned
         scheduling_unit_blueprint.save()
 
         # but scheduling constraints should be immutable
@@ -825,7 +825,7 @@ class SchedulingUnitBlueprintTest(unittest.TestCase):
         scheduling_unit_blueprint.refresh_from_db()
 
         # we should be able to modify other fields
-        scheduling_unit_blueprint.results_accepted = not scheduling_unit_blueprint.results_accepted
+        scheduling_unit_blueprint.output_pinned = not scheduling_unit_blueprint.output_pinned
         scheduling_unit_blueprint.save()
 
         # but scheduling constraints should be immutable